However, for most internal combustion engines (ICE) in vehicles, the ideal operating temperature is typically within a range of 195-220°F (90-104°C). This is the temperature range where the engine achieves a balance between:
* Efficient combustion: Too cold, and combustion is incomplete, leading to poor fuel economy and increased emissions. Too hot, and you risk pre-ignition or detonation (knocking), which can damage the engine.
* Lubrication: The engine oil needs to be at the right temperature for optimal viscosity. Too cold, and it's too thick; too hot, and it's too thin, offering less protection.
* Material strength: Engine components are designed to withstand certain temperatures. Exceeding these temperatures can lead to material degradation and failure.
The engine's cooling system (radiator, coolant, thermostat) is designed to maintain this optimal temperature range. A thermostat regulates coolant flow to keep the engine within the ideal operating temperature. Different vehicles and engines might have slightly different ideal operating ranges, but they will all fall within a relatively narrow band.
